Reducing ore by means of solid, carbonaceous material.



S. E. SIEURIN.

REDUCING ORE BY MEANS OF SOLID, GARBONAGEOUS MATERIAL.

APPLICATION FILED APR. 1. 1911 1,054,873, Patented Mar. 4, 1913.

I lllllllll lllllllll WITNESSES: IN VE/V TOR I by Means of Solid,Carbonaceous Material,

PATENT OFFICE.

- UNITED s'rA'rps SVEN EMIL SIEURIN, OF HGGAN A S, SWEDEN.

REDUCING ORE BY MEANS OF SOLID, CARBONACEOUS MATERIAL.

Specification of Letters Patent.

Application filed April 1, 1911.

Patented Mar. 4, 1913. Serial- No. 618,474.

To all whom it may concern:

Be it known that I, SVEN EMIL SIEURIN, a subject of the King, of Sweden,residing at Hoganas, Sweden, have invented new and useful Improvementsin Reducing Ore of which the following is aspecification.

- The reduction, of ores into metals can be efl'ected by placing theore, in a more or less finely disintegrated state,mixed with acarbonaceous material or in alternate layers with such material inclosed receptacles,

which are heated to a temperature below the fusion point. of the metalto be extracted. It has however proved to be difiicult, after thecompletion of such a reducing process, to

' ceptacle and thus will not adhere to the remove the metal from thereceptacles, said metal forming ha'r'd, agglomerated porous pieces orcakes, which generally adhere so strongly to the walls of the receptaclethat the latter is destroyed when the metal is to be taken out.

The present'invention has for its object l to overcome the said veryserious inconvenience and consists therein, that the side walls I and,if desired, also'the bottom of the receptacle are lined, before, during,or after the introduction of the reducing agent and ore, with a materialin the shape of powder, or small pieces, which will not be subjected toany alteration during the heating of the rewalls nor to the metal Suchmaterials are for instance certain kinds of carbon and ashes, refractorysand and refractory clay. The lining can be effected in such way, thatbefore the charging of the receptacle "plates are inserted in'the latterat some distance from its sides, the spaces between the said plates andthe sides being filled with the hning material. Then the ore and thereducing material are introduced either in alternate layers or mixedtogether, and the plates are taken out, the receptacle is covered and isheated in order to perform the reduction. When the heating is completed,the spongy metal is found to be very easy to remove, because it does notadhere to the walls of the receptacle nor to the lining which consistsof powder or small pieces.

In the accompanying drawing, Figures 1 and 2 show vertical sections oftwo receptacles arranged according to the present invention one of whichis charged with ore and reducing material in alternate layers and theother with a mixture of both.

a is the receptacle, 6 the lining of the same, consisting of a materialwhich will not adhere to the receptacle nor to the ore, c the charge ofore and reducing material (either in alternate layers, as in Fig. 1, ormixed, as in Fig. 2), and d the above-mentioned plates, which serve tofacilitate the my invention and the manner of In testimony whereof Ihave signed my.-

name to this specification in the presence of two subscribing witnesses.

SVEN EMIL SIEURIN.

Witnesses FBEDE (Jameson, W. OR'JIENHOLM.

